223131033231023 has 4 divisors (see below), whose sum is σ = 223148304784560. Its totient is φ = 223113761677488.

The previous prime is 223131033231019. The next prime is 223131033231101. The reversal of 223131033231023 is 320132330131322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223131033231023 - 2² = 223131033231019 is a prime.

It is a super-3 number, since 3×223131033231023³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223131033231823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8635757390 + ... + 8635783227.

It is an arithmetic number, because the mean of its divisors is an integer number (55787076196140).

Almost surely, 2^{223131033231023} is an apocalyptic number.

223131033231023 is a deficient number, since it is larger than the sum of its proper divisors (17271553537).

223131033231023 is a wasteful number, since it uses less digits than its factorization.

223131033231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17271553536.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 223131033231023 its reverse (320132330131322), we get a palindrome (543263363362345).

The spelling of 223131033231023 in words is "two hundred twenty-three trillion, one hundred thirty-one billion, thirty-three million, two hundred thirty-one thousand, twenty-three".